South Dakota Energy Adjustment and Riders

South Dakota electric service statements include an Energy Adjustment and three riders. For additional information please refer to specific rate schedules

The Energy Adjustment includes the cost of fuel we use to generate electricity to serve our retail customers, transportation costs for that fuel, and costs we incur to buy energy to supplement our own power plants. Effective August 1, 2019, each service category (listed below) will have its own rate.

Service category

Residential

2021
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02817 per kwh  
 March 2, 2021 $ .02330 per kwh  
 February 1, 2021 $ .01928 per kwh  
 January 4, 2021 $ .01730 per kwh  

 

2020
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02282 per kwh
 November 2, 2020 $ .02276 per kwh
 October 2, 2020 $ .02076 per kwh
 September 1, 2020 $ .01818 per kwh
 August 3, 2020 $ .01633 per kwh
 July 2, 2020 $ .01846 per kwh
 June 2, 2020 $ .02121 per kwh
 May 1, 2020 $ .02320 per kwh
 April 2, 2020 $ .02555 per kwh
 March 3, 2020 $ .02551 per kwh
 February 3, 2020 $ .02357 per kwh
 January 3, 2020 $ .02289 per kwh

 

2019
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02373 per kwh
 November 1, 2019 $ .02881 per kwh
 October 2, 2019 $ .02786 per kwh
 September 3, 2019 $ .02672 per kwh
 August 2, 2019 $ .02166 per kwh

Farm

2021
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02798 per kwh  
 March 2, 2021 $ .02314 per kwh  
 February 1, 2021 $ .01915 per kwh  
 January 4, 2021 $ .01718 per kwh  

 

2020
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02267 per kwh
 November 2, 2020 $ .02261 per kwh
 October 2, 2020 $ .02061 per kwh
 September 1, 2020 $ .01805 per kwh
 August 3, 2020 $ .01622 per kwh
 July 2, 2020 $ .01834 per kwh
 June 2, 2020 $ .02106 per kwh
 May 1, 2020 $ .02305 per kwh
 April 2, 2020 $ .02537 per kwh
 March 3, 2020 $ .02533 per kwh
 February 3, 2020 $ .02341 per kwh
 January 3, 2020 $ .02273 per kwh

 

2019
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02356 per kwh
 November 1, 2019 $ .02861 per kwh
 October 2, 2019 $ .02767 per kwh
 September 3, 2019 $ .02653 per kwh
 August 2, 2019 $ .02151 per kwh

General Service

2021
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02836 per kwh  
 March 2, 2021 $ .02346 per kwh  
 February 1, 2021 $ .01941 per kwh  
 January 4, 2021 $ .01741 per kwh  

 

2020
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02298 per kwh
 November 2, 2020 $ .02292 per kwh
 October 2, 2020 $ .02090 per kwh
 September 1, 2020 $ .01830 per kwh
 August 3, 2020 $ .01644 per kwh
 July 2, 2020 $ .01859 per kwh
 June 2, 2020 $ .02135 per kwh
 May 1, 2020 $ .02336 per kwh
 April 2, 2020 $ .02572 per kwh
 March 3, 2020 $ .02568 per kwh
 February 3, 2020 $ .02373 per kwh
 January 3, 2020 $ .02304 per kwh

 

2019
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02389 per kwh
 November 1, 2019 $ .02900 per kwh
 October 2, 2019 $ .02805 per kwh
 September 3, 2019 $ .02690 per kwh
 August 2, 2019 $ .02181 per kwh

Large General Service

2021
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02699 per kwh  
 March 2, 2021 $ .02232 per kwh  
 February 1, 2021 $ .01847 per kwh  
 January 4, 2021 $ .01657 per kwh  

 

2020
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02187 per kwh
 November 2, 2020 $ .02181 per kwh
 October 2, 2020 $ .01988 per kwh
 September 1, 2020 $ .01741 per kwh
 August 3, 2020 $ .01565 per kwh
 July 2, 2020 $ .01769 per kwh
 June 2, 2020 $ .02032 per kwh
 May 1, 2020 $ .02223 per kwh
 April 2, 2020 $ .02448 per kwh
 March 3, 2020 $ .02444 per kwh
 February 3, 2020 $ .02258 per kwh
 January 3, 2020 $ .02193 per kwh

 

2019
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02273 per kwh
 November 1, 2019 $ .02760 per kwh
 October 2, 2019 $ .02669 per kwh
 September 3, 2019 $ .02559 per kwh
 August 2, 2019 $ .02075 per kwh

Irrigation Service

2021
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02509 per kwh  
 March 2, 2021 $ .02075 per kwh  
 February 1, 2021 $ .01717 per kwh  
 January 4, 2021 $ .01540 per kwh  

 

2020
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02033 per kwh
 November 2, 2020 $ .02027 per kwh
 October 2, 2020 $ .01849 per kwh
 September 1, 2020 $ .01619 per kwh
 August 3, 2020 $ .01455 per kwh
 July 2, 2020 $ .01644 per kwh
 June 2, 2020 $ .01889 per kwh
 May 1, 2020 $ .02067 per kwh
 April 2, 2020 $ .02275 per kwh
 March 3, 2020 $ .02272 per kwh
 February 3, 2020 $ .02099 per kwh
 January 3, 2020 $ .02038 per kwh

 

2019
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02113 per kwh
 November 1, 2019 $ .02565 per kwh
 October 2, 2019 $ .02482 per kwh
 September 3, 2019 $ .02379 per kwh
 August 2, 2019 $ .01929 per kwh

Outdoor Lighting

2021
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02223 per kwh  
 March 2, 2021 $ .01838 per kwh  
 February 1, 2021 $ .01521 per kwh  
 January 4, 2021 $ .01365 per kwh  

 

2020
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .01801 per kwh
 November 2, 2020 $ .01796 per kwh
 October 2, 2020 $ .01638 per kwh
 September 1, 2020 $ .01434 per kwh
 August 3, 2020 $ .01289 per kwh
 July 2, 2020 $ .01457 per kwh
 June 2, 2020 $ .01673 per kwh
 May 1, 2020 $ .01831 per kwh
 April 2, 2020 $ .02016 per kwh
 March 3, 2020 $ .02013 per kwh
 February 3, 2020 $ .01860 per kwh
 January 3, 2020 $ .01806 per kwh

 

2019
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .01872 per kwh
 November 1, 2019 $ .02273 per kwh
 October 2, 2019 $ .02199 per kwh
 September 3, 2019 $ .02108 per kwh
 August 2, 2019 $ .01709 per kwh

OPA (Municipal Pumping/Electric Vehicle)

2021
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02770 per kwh  
 March 2, 2021 $ .02291 per kwh  
 February 1, 2021 $ .01896 per kwh  
 January 4, 2021 $ .01701 per kwh  

 

2020
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02245 per kwh
 November 2, 2020 $ .02239 per kwh
 October 2, 2020 $ .02041 per kwh
 September 1, 2020 $ .01787 per kwh
 August 3, 2020 $ .01606 per kwh
 July 2, 2020 $ .01816 per kwh
 June 2, 2020 $ .02085 per kwh
 May 1, 2020 $ .02282 per kwh
 April 2, 2020 $ .02512 per kwh
 March 3, 2020 $ .02508 per kwh
 February 3, 2020 $ .02318 per kwh
 January 3, 2020 $ .02251 per kwh

 

2019
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02333 per kwh
 November 1, 2019 $ .02833 per kwh
 October 2, 2019 $ .02740 per kwh
 September 3, 2019 $ .02627 per kwh
 August 2, 2019 $ .02130 per kwh

Controlled Service Water Heating

2021
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02856 per kwh  
 March 2, 2021 $ .02361 per kwh  
 February 1, 2021 $ .01955 per kwh  
 January 4, 2021 $ .01753 per kwh  

 

2020
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02314 per kwh
 November 2, 2020 $ .02307 per kwh
 October 2, 2020 $ .02104 per kwh
 September 1, 2020 $ .01842 per kwh
 August 3, 2020 $ .01656 per kwh
 July 2, 2020 $ .01872 per kwh
 June 2, 2020 $ .02150 per kwh
 May 1, 2020 $ .02352 per kwh
 April 2, 2020 $ .02590 per kwh
 March 3, 2020 $ .02586 per kwh
 February 3, 2020 $ .02389 per kwh
 January 3, 2020 $ .02320 per kwh

 

2019
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02405 per kwh
 November 1, 2019 $ .02920 per kwh
 October 2, 2019 $ .02824 per kwh
 September 3, 2019 $ .02708 per kwh
 August 2, 2019 $ .02195 per kwh

Controlled Service Interruptible (Dual Fuel)

2021
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02787 per kwh  
 March 2, 2021 $ .02305 per kwh  
 February 1, 2021 $ .01907 per kwh  
 January 4, 2021 $ .01711 per kwh  

 

2020
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02258 per kwh
 November 2, 2020 $ .02252 per kwh
 October 2, 2020 $ .02053 per kwh
 September 1, 2020 $ .01798 per kwh
 August 3, 2020 $ .01616 per kwh
 July 2, 2020 $ .01826 per kwh
 June 2, 2020 $ .02098 per kwh
 May 1, 2020 $ .02295 per kwh
 April 2, 2020 $ .02527 per kwh
 March 3, 2020 $ .02523 per kwh
 February 3, 2020 $ .02332 per kwh
 January 3, 2020 $ .02264 per kwh

 

2019
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02347 per kwh
 November 1, 2019 $ .02850 per kwh
 October 2, 2019 $ .02756 per kwh
 September 3, 2019 $ .02643 per kwh
 August 2, 2019 $ .02142 per kwh

Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)

2021
Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  
 November 1, 2021  
 October 1, 2021  
 September 1, 2021  
 August 3, 2021  
 July 1, 2021  
 June 2, 2021  
 May 3, 2021  
 April 2, 2021 $ .02602 per kwh  
 March 2, 2021 $ .02152 per kwh  
 February 1, 2021 $ .01781 per kwh  
 January 4, 2021 $ .01598 per kwh  
2020
 Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 $ .02109 per kwh
 November 2, 2020 $ .02103 per kwh
 October 2, 2020 $ .01918 per kwh
 September 1, 2020 $ .01679 per kwh
 August 3, 2020 $ .01509 per kwh
 July 2, 2020 $ .01706 per kwh
 June 2, 2020 $ .01959 per kwh
 May 1, 2020 $ .02144 per kwh
 April 2, 2020 $ .02360 per kwh
 March 3, 2020 $ .02356 per kwh
 February 3, 2020 $ .02178 per kwh
 January 3, 2020 $ .02114 per kwh

 

2019
 Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 December 2, 2019 $ .02192 per kwh
 November 1, 2019 $ .02661 per kwh
 October 2, 2019 $ .02574 per kwh
 September 3, 2019 $ .02468 per kwh
 August 2, 2019 $ .02001 per kwh

Rates applicable to all service categories prior to August 1, 2019

Rates for the Energy Adjustment for bills rendered on and after:
July 2, 2019 $ .02342 per kwh
June 3, 2019 $ .02597 per kwh
May 2, 2019 $ .02873 per kwh
April 3, 2019 $ .02882 per kwh
March 6, 2019 $ .02703 per kwh
February 8, 2019 $ .02562 per kwh
January 4, 2019 $ .02382 per kwh
December 3, 2018 $ .02283 per kwh
November 1, 2018 $ .02228 per kwh
October 2, 2018 $ .02256 per kwh
September 4, 2018 $ .02429 per kwh
August 2, 2018 $ .02314 per kwh
July 2, 2018 $ .02393 per kwh
June 1, 2018 $ .02380 per kwh
May 2, 2018 $ .02495 per kwh
April 2, 2018 $ .02594 per kwh
March 2, 2018 $ .02618 per kwh
February 1, 2018 $ .02457 per kwh
January 3, 2018 $ .02348 per kwh

The Energy Efficiency Plan Rider (EEP) represents our investment in energy-efficiency programs that help our customers save energy. The EEP surcharge factor is multiplied by the customer's monthly energy (kwh) usage. 

EEP surcharge factor for bills rendered during:
Effective for bills rendered on or after July 1, 2020 $ 0.00195 per kwh
Effective for bills rendered on or after July 1, 2019 $ 0.00164 per kwh​

 

The Transmission Cost Recovery Rider allows our company to recover costs associated with transmission additions designed to meet our customers' growing energy needs, accommodate the delivery of additional renewable energy, and enhance transmission system reliability. 

Transmission Cost Recovery Rider from March 1, 2021 to present
  Energy Charge per kwh Demand Charge per kw
Large General Service (a) $ 0.00229 per kwh $ 0.686 per kw
Controlled Service (b) $ 0.00120 per kwh N/A
Lighting (c) $ 0.00421 per kwh N/A
All Other Service $ 0.00618 per kwh N/A
Transmission Cost Recovery Rider from March 1, 2020 to February 28, 2021
  Energy Charge per kwh Demand Charge per kw
Large General Service (a) $ 0.00214 per kwh $0.679 per kw
Controlled Service (b) $ 0.00117 per kwh N/A
Lighting (c) $ 0.00367 per kwh N/A
All Other Service $ 0.00704 per kwh N/A

(a) Rate schedules 10.04 Large General Service, 10.05 Large General Service - Time of day, 10.06 Super Large General Service, 14.02 Real Time Pricing Rider, 14.03 Large General Service Rider, and 14.13 Economic Development Rider

(b) Rate schedules 14.01 Water Heating, 14.04 Interruptible Load (CT Metering), 14.05 Interruptible Load (Self-Contained Metering), 14.06 Deferred Load, and 14.07 Fixed Time of Service

(c) Rate schedules 11.03 Outdoor Lighting (energy only), 11.04 Outdoor Lighting, and 11.07 LED Street and Area Lighting

 

As of December 2014 the Environmental Cost Recovery Rider (ECRR) allows our company to recover costs that we incur to meet federal environmental quality requirements for our electric generating facilities. The South Dakota Public Utilities Commission approved our request for an ECRR to include the costs associated with an air-quality control system (AQCS) at Big Stone plant in South Dakota and Mercury and Air Toxics Standards (MATS) at Hoot Lake Plant. The AQCS and MATS will allow Big Stone Plant and Hoot Lake Plant to meet federal air quality requirements.

Environmental Cost Recovery Rider factor for bills rendered:
On or after August 1, 2019 $0.00000 per kwh
From October 18, 2018, through July 31, 2019 -$0.00075 per kwh

 

The Phase-In Rider allows our company to share back revenues associated with new load growth and to recover costs associated with new generation facilities to provide additional capacity, dispatchable energy, and grid support to meet our customer's electric needs. 

Phase-In Rider as of September 1, 2020
On or after September 1, 2020 6.521%